
In 480 BCE, Xerxes’ army invades Greece as Themistocles leads the Greek fleet at Artemisium. Leonidas and 300 Spartans hold Thermopylae until a defector reveals a path, allowing Xerxes’ Immortals to outflank them.
As Persia attacks Athens, Themistocles urges evacuation, trusting an oracle’s promise of salvation through his fleet. With Greek unity faltering, he must outwit Xerxes at sea. This war will decide the fate of empires as tradition clashes with ambition.